Confection-immersing machine.



C. BERTOLOTTI & D. PICCARDO.

coNFEoTIoN IMMBRSING MACHINE.

1,004,232LLWWA APPLICATION FILED DEO. 8, 1910.

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.um lx coLuMBl PLANoaRAPN CO..WASHINO1'ON, n. c.

Patented SBP@ C. BERTOLOTTI & D. PICCARDO.

GONPBCTION IMMEESING MACHINE.

APPLICATION FILED Dnc. a, 1910.

1,004,232, Patented sepn.,26,1911.

4 SHEETS-SHEET 2.

EOLUMBM' PLANDQRAPN co.,wASl|lNuTON. n. cf

C. BERTOLOTTI & D. 1 ICCARDO. CONFBGTION IMMBRSING MACHINE.

APPLIoATloN FILED 1320.8, 19104 1,004,232. W Patented sept. 26, 1911:W

4 annua-SHEET a.

I2? Z9 avi/f' z COLUMBIA PLANOGHAPII co..wAs||NnTo. l. c.

C. BERTOLOTTI & D. lPICCARDO. GONFEGTION IMMERSING MACHINE.

rPLIoATIoN FILED Duo. s, 1910.

Patented 895.36. 191 1,

4 SHEETS-SHEET 4.

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COLUMBIA PLANOURAPM cU..WASmNaTON. n. c.'

UNITED STATES PATENT OFFICE.

CONSTANTINO BERTOLOTTI ANI) DIONISIO PICCARDO, 0F NEW YORK, N. Y.

"` CONFECTIONLIIV'IMERSINGMACH'INETWAM Mv Specification of LettersPatent.

Patented Sept. 26, 1911.

Application filed December 8, 1910. Serial No. 596,249.

citizen of the United States and the latter al subject of the King ofItaly, residing at New York, in the county of New York, State of NewYork, have invented certain new and useful Improvements in Confection-Immersing Machines; and we do hereby declare the following to be a full,clear, and eXact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to confection immersing machines.

The object of the invention resides in the provision of a machinethrough the instrumentality of which a plurality of confection cores maybe simultaneously moved into and out ofan immersing tank for the purposeof coating the same with chocolate.

A further object of the invention resides in the provision of a machineof the character described which includes a vertically reciprocatingconfection core -supporting basket adapted for movement into and out ofan immersing tank and in providing means whereby the reciprocation ofsaid basket is automatically stopped at the termination of each upwardstroke thereof.

Another object of the invention resides in the provision of a confectionimmersing machine which includes a new and improved form of coresupporting basket so constructed and arranged that after said cores havebeen immersed in chocolate, the former may be discharged downwardly fromthe basket in such manner as to obviate any possibility of disfigurementor injury to the coating of the core.

A still further object of the invention resides in providing meanswhereby the confection core supporting basket heretofore referred towill be sharply agitated just prior to the limit of its upward movementso as to shake from said basket and the confection cores carried therebyall surplus and unnecessary chocolate and thus render the amount ofcoating carried by each core of a uniform character.

Finally, the obj ect of the invention resides in the provision of amachine of the character named which will be simple in construction,efficient in use and comparatively inexpensive to manufacture.

With these and other objects in view, the

invention consists in the details of construction and in the arrangementand combination of parts to be hereinafter more fully described andparticularly pointed out in the appended claims.

In describing the invention in detail, reference will be had to theaccompanying drawings, wherein like characters of reference denotecorresponding parts in the several views; and in which,

Figure 1 is a side elevation of a confection immersing machineconstructed in accordance with the invention, certain parts of the frameof the machine being broken away; Fig. 2, an end view of the machinelooking to the left in Fig. 1, with the central portion of said machinebroken away; Fig. 3, a vertical longitudinal section of the machine;Fig. 4, a plan view of the machine; Fig. 5, a detail perspective view ofa portion of the mechanism employed to automatically disconnect the coresupporting basket from t-he drive shaft shown at the termination of eachmovement of said basket out of the immersing tank; Fig. 6, an enlargedsection on the line 6-6 of Fig. 4; Fig. 7, an enlarged detailperspective view of a carrier bar and the hangers suspended therefromwhich support the confection core immersing basket, and showing themanner of mounting the cover sections for said basket on said hangerbars; Fig. 8, an enlarged plan view of the confection core supportingbasket; Fig. 9, a section on the line 9-9 of Fig. 8; and Fig. 10, an endView of the basket illustrated in Fig. 9.

Referring to the drawings, the machine is shown as comprising a base 10,from which rise a plurality of standards l1. Supported upon the upperends of the standards l1 is a plural wall immersing tank 12 in which isadapted to be stored the material with which the confection cores are tobe coated. Rising from the upper end of the wall of the tank 12 atdiametrically opposite points are corresponding uprights 13 and 14 whichhave formed on their inner faces corresponding grooves 15 and 16respectively. These uprights 13 and 14 are braced at their upper ends bymeans of a rod 17. Journaled between the uprights 13 and 14 beneath therod 17 and having one end extending beyond the upright 14 is a shaft 18which is provided centrally with a crank portion 19. Slidably mounted inthe grooves 15 and 16 are blocks 2O and 21 respectively, which havesecured thereto respectively the opposite ends of a supporting bar 22.This bar 22 has mounted centrally Ythereon a rotatable U shapedmember-23,

the body portion of which has rigidly secured thereto the lower end of astem 24, the upper end of said stem being pivotally connected to thecrank arm 19 of the shaft 18. By this construction, it will be apparentthat as the shaft 18 is rotated, the supporting bar 22 and the blocks 20and 21 will be reciprocated vertically in unison. Depending from theinner end of the block 2O is a stud 25, which terminates in a plate 26disposed transversely of the bar 22. A corresponding stud 27 dependsfrom the inner end of the block 21 and terminates in a plate 28 similarto the plate 26 and disposed transversely of the bar 22. The plate 26 isprovided at one end with a pair of depending ears 29 and 30 which areembraced by and-pivotally connected to a pair of ears 31 and 32 formedon a plate 33 disposed in spaced relation to the plate 26. By thisconstruction, it ywill be apparent thatthe plate 33 is mounted so as tobe capable of a swinging movement toward and away from the plate 26. Themovement of this plate 33 away from the plate 26 is limited by means ofa bolt 34 fixed to the plate 26 and extending through the plate 33, theouter end of this bolt being provided with an enlarged portion 35 forengagement with the outer face of the plate 33. Projecting from the freeend of the plate 33 longitudinally thereof is a resilient tongue 36 fora purpose that will presently appear. Likewise, the plate 28 is providedat one end with depending spaced ears 37 and 38 which are embraced byand pivotally connected to a pair of ears 39 and 40 formed on a plate 41which is disposed in spaced relation to the plate 28. thus capable of aswinging movement toward and away from the plate 28 as will be apparent.The movement of the plate 41 away from the plate 28 is limited by meansof a bolt 42 fixed to the plate 28 and projecting through the plate 41,the outer end of said bolt being provided with an enlarged portion 43adapted for engagement with the outer face of the plate 41. Mountedlongitudinally upon the plate 41 and proj ecting from the free endthereof is a resilient tongue 44 for a purpose that will presentlyappear. Supported by and depending from the plate 33 is hanger bar 45,while a corresponding hanger bar 46 is supported by and depends from theplate 41.y Secured to the lower ends of the hanger bars 45 and 46 is aconfection core supporting basket A which will be hereinafter moreparticularly described.

Supported upon the outer face of the upj right 14 just beneath the shaft18 is a plate This plate 41 is 47 which has secured thereto a pair ofspaced journal blocks 48 and 49, in which is rotatably mounted a shaft50. Mounted "uponxthis shaft betweenthe journal blocks 48 and 49 is aworm 51, which meshes with a worm wheel 52 fixed upon the shaft 18 sothat a rotation of the shaft 50 will in turn rotate the shaft 18.Loosely mounted upon the shaft 50 adjacent the journal block 49 is abelt wheel 53, and slidably mounted upon the shaft 50 between the beltwheel 53 and the journal block 49 is a clutch 54. Mounted upon the plate47 beneath the shaft 50 is a pair of spaced blocks 55 and 56 in u whichis slidably mounted for movement longitudinally of the shaft 50 a rod57. This rod has one end thereof bent upwardly and secured to a clutchyoke 58 which operatively engages the clutch 54. The other end i of saidrod 57 is operatively connected to a lever 59 which is pivotally mounted.upon the upright 14. By this construction, it will be apparent that asthe lever 59 is oscillated, r

64, and traveling upon the latter and the i belt wheel 53 is a belt 65.Fixed upon the shaft 63 adjacent the journal block 61 is a crank 66,through the instrumentality of which the shaft 63 is rotated. It will'of course be understood that where the machine is operated by otherthan manual force, the crank 66 is dispensed with and a suitableconnection mounted on the shaft 63 in lieu thereof.

The belt wheel 53 has the outer end of its hub extended, as at 67, andloosely mounted upon this extension of the hub and confined largelyWithin the periphery of said belt wheel is a disk 68 having teeth 69mounted on the outer face thereofv and` extending into and out ofoperating engagement with the disk 68. This clutch member 70 is heldagainst displacement from the hub extension 67 by means of a washer 71secured on the end of the shaft 50. vSlidably mounted in the blocks 55and 56 beneath the rod 57 is another rod 72, one end of which is bentand secured to a clutch yoke 73 engaging the clutch member 70. Extendinglaterally from the outer face of the upright 14 is a stud 74 which haspivotally mounted on its outer end an angle lever 75. this angle lever75 has its outer end forked One arm of and disposed between the arms ofsaid forked outer end is a pin 76 projecting laterally from the rod 72.The free end of the other arm of the lever 75 has pivotally connectedthereto the upper end of"*a'-link" 77, the lower end of said link beingpivotally connected to a treadle lever 78, which latter is pivotallysupported upon the base 1C. A spring 79 has one end secured to the armof the angle lever 75, which is connected to the link 77, and its otherend secured to a pin 80 projecting laterally from the block 55. Thisspring serves to normally hold the rod 72 so as to maintain the clutchconnection out of engagement with the disk 68, the operation of theclutch connection 70 into engagement with the disk 68 being effected bydepressing the treadle lever 78.

Secured to each of the uprights 13 and 14 and extending laterallytherefrom on the same side as the belt wheel 53 are brackets 81 and 82respectively and mounted upon these brackets in corresponding positionare bearings 83 and 84 respectively. J ournaled in the bearings 83 and84 is a shaft 85 which extends beyond the bearing 84 on one end, andhasmounted on said extension a gear wheel 86 meshing with the teeth 69of the disk 68. Also fixed on the shaft 85 just inward of the bracket 82is a grooved pulley 87, while a corresponding grooved pulley 88 is xedon said shaft just inward of the bracket 81. Mounted on the upright 14at the lower end of the bracket 82 1s a journal bracket 89, which hasmounted therein a rotatable shaft 90 carrying on its inner end a groovedpulley 91 and a toothed wheel 92, said grooved pulley 91 being disposedin alinement with the grooved pulley 87 on the shaft 85. Likewisemounted on the upright 13 is a journal bracket 93, which has mountedtherein a rotatable shaft 94, carrying on its inner end a groved pulley95 and a toothed wheel 96, said grooved pulley 95 being in alinementwith the grooved pulley 88 on the shaft 85. Traveling on the groovedpulleys 87 and 91 is a connection 97, while a similar connection 98travels on the grooved pulleys 88 and 95. The toothed wheels 92 and 96are so disposed that as the supporting bar 22 and the basket A areelevated, they will be engaged by the resilient tongues 44 and 34respectively, and upon a rotation of said wheels throu h theinstrumentality of the clutch connection 70 and the toothed disk 68cause vibratory or shaking movement to be imparted to the basket A andthus remove the surplus chocolate from the confection cores and thebasket as desired.

In order to automatically throw out the clutch 54 during the operationof the machine, and stop the rotation of the shaft 50 reached itsgreatest elevation, the following structure is resorted to. Projectingoutwardly from the journal blocks 48 and 49 are corresponding bolts 99and 100, which upon the plate 101 is an angle lever 102, one arm ofwhich is pivotally connected to the clutch yoke 58 by means of a link103. The free end of the other arm of the angle lever 102, when theclutch 54 is disposed in active position, is positioned slightly abovethe plate 101 for a purpose that will presently appear. Splined upon theshaft 18 exteriorly of the worm wheel 52 is a collar 104, which isnormally held against the outer' face of said worm wheel by means of aspring 105 encircling the shaft 18. The inner face of this collar iscammed, as at 106, for cooperation with a finger 107 secured to theinner face of the plate 101 and extending upwardly toward the collar104. This tinger is so positioned with respect to the collar 104 that asthe shaft 18 is rotated, it will engage the cammed inner face of saidcollar and force the latter outwardly on the shaft 18 against theinfiuence of the spring 105. This outward movement of the collar 104will bring the outer face of said collar substantially in verticalalinement with the angle lever 102 so that a stud 107 extending radiallyfrom the periphery of the collar 104 will engage one of the arms of theangle lever 102 when the shaft 18 is rotated. This engagement of theangle lever 102 by the stud 107 will, as a result of the relation of theparts, occur when the basket A has reached its greatest elevation. Thepressure of the stud 107 upon the arm of the angle lever 102 will causesaid angle lever to rock upon its pivot and through the medium of theconnection 103 throw the clutch 54 out of engagement with the belt wheel53 and thus stop the rotation of the shaft 50 and the shaft 18, and as aresult prevent further movement of the basket A until the clutch 54 isagain thrown into engagement with the belt wheel 53 through the mediumof the lever 59.

Mounted upon the base 10 beneath the tank 12 is a journal plate 108, inwhich is rotatably supported one end of a vertical shaft 109. This shaftextends centrally through the bottom of the tank 12 and carries at itsupper end an agitating dasher 110 disposed within the interior of thetank 12. Fixed upon the shaft 109 between the tank 12 and the base 10 isa belt wheel 11.1. Mounted upon the base 10 to one side of the tank 12is a housing 112, within which is disposed a pair of spaced standards113 and 114 which support at their upper ends bearings 115 and 116respectively. Journaled in these bearings is a shaft 117. Fixed uponthis shaft is a belt wheel 118 disposed in and the shaft 18 when thebasket A has alinement with the belt wheel 53 mounted upon the shaft 56and a belt connection 119" is another belt wheel 119 and between said.

last named belt wheel and the belt wheel 118 a clutch 120 is keyed uponthe shaft 117. A belt 121 travels on the belt wheels 111 and 119 for thepurpose of imparting rotation to the shaft 109. The belt wheel 119 iscontrolled by the clutch 120 and this clutch is in turn operated by ahand lever 122 pivotecl to the housing 112 and having one endoperatively connected to a sliding rod 123 mounted in the standards 113and 114, said rod being operatively connected to the clutch 120 by meansof a laterally extending member 124. By this construction, it will beapparent that the agitation of the chocolate contained within the tank12 can be had at any desired moment by the manipulation of the lever 122so as to throw in the clutch 120 with respect to the belt:

1 formed on each end inwardly extending wheel 119.

The core supporting frame A comprises specifically a rectangular frameformed of side members 125 and end members 126. The side members 125 areprovided with suitable alining openings in which are slidably mountedtwo sets of rods 127 and 128 respectively, a rod of one set beingdisposed.

adjacent the rod of another set and in parv allel spaced relationthereto.

The rods 127 i are mutually connected together at one end means of auniting member 129, whilel by a uniting `member 130; said unitingmembers 129 and 130 being disposed on opposite sides of the rectangularframe respectively. Secured to the rods 127 is a plurality ofsupporting` rods 131 extending longitudinally of the rectangular frameand in parallel spaced relation to each other. These supporting rods 131extend through the longitudinal slots 132 in the rods 128 so that whenthe rods 127 are slid transversely of the rectangular frame,thesupporting rods 131 will be capable of a limited movement in unisontherewith. Secured to the rods 128 is a plurality of spaced supportingrods 133, which extend parallel to the supporting rods 131 and vpassthrough slots 134 in certain of the bars 127 so that when the rods 128are slid transversely of the rectangular frame, the supporting rods 133will be capable of a limited transverse movement in unison therewith.

From this construction, it will be apparent that when the unitingmembers 129 and 130 are moved simultaneously toward thew longitudinalaxis of the rectangular frame, the supporting rods 131 and 133 will bemoved toward each other, while the opposite movement of said uniting.members will cause said supporting rods to be moved away from eachother. 1n order to produce such movement of the uniting members towardand away from the longitudinal axis off/the rectangular frame, thefollowing structure is resorted to. The end members 126 of therectangular frame are each provided centrally with correspondinglaterally projecting trunnions 135, upon each of which is rotatablymounted a sleeve 136. These sleeves 136 are each provided withdiametrically opposite laterally extending arms 137 and 138, the freeends of which arms terminate in a forked portion. Formed on the unitingmember 129 at each end thereof are inwardly extending arms 139, whichare disposed substantially in the same vertical plane with the arms 138carried by the sleeves 136. The free ends of the arms 139 are alsoforked and a link 140 has one end pivotally connected to the forked freeend of the arm 139 and its other end pivotally connected to the forkedfree end of the arm 138. Likewise, the uniting member 130 has arms 141,the free ends of which terminate in a forked portion. These arms 141 liein substantially the same vertical plane with the arms 137 and areconnected to the latter respectively by means of links 142 which haveone end pivotally connected to the forked portion of the arm 141 and itsother end pivotally connected to the forked portion of the arm 137.Mounted on the uniting member 129 is an operating handle 143, throughthe manipulation of which the uniting members 129 and 130 are movedtoward and away from the longitudinal axis of the rectangular frame.During the movement of the uniting member 1.29 toward the longitudinalaxis of the rectangular frame it will be apparent that the force exertedthereon will be transmitted by means of the links 140 to the rotatablesleeves 137, which latter will in turn rotate and serve to draw theuniting member 130 inwardly toward the longitudinal axis of therectangular frame in unison with the movement of the uniting member 129.Likewise, the reverse movement of the uniting member 129 will cause theuniting member 130 to be moved in unison in the reverse direction. Ashas been previously noted, this movement of the uniting members 129 and130 toward the longitudinal axis of the rectangular frame will eect themovement of the supporting rods 131 and 133 toward each other or tosupporting position, while the reverse movement of said uniting memberswill effect the movement of said supporting rods away from each other orto release position. In the latter position, it will be noted that thesupporting rods 131 and 133 are disposed at too great a distance apartto support the confection cores and said cores will as a result bedischarged through the bottom of the supporting basket. In order toprevent the confection cores from moving in unison with the supportingrods 131 and 133 when the `latter are shifted to release position,

there is providegLamivire mesh B which is secured at itsv limits to thetop edge of the rectangular' frame and `overlies the supportingrods 131and 133. This wire mesh comprises a plurality of longitudinal andtransverse wires 144 and 145 respectively. The longitudinal wires 144are provided with laterallyT extending fingers 146, while the crosswires 145 are likewise provided with laterally extending lingers 147.These fingers are arranged so as to properly position the confectioncores upon the supporting rods 131 and 133 when the latter' are insupporting position. lV hen the supporting rods 131 and 133 are moved torelease position,it will be apparent that the fingers 146 and 147 beingstationary, will serve to hold the confection cores against movement inunison with the supporting rods and will at the same time readily permitthe cores to be discharged through the bottom of the basket when saidsupporting rods have been shifted to release position. Mounted upon eachof the trunnions 135 outwardly of the sleeves 136 is a second sleeve 148which is held against rotation on the trunnion by means of a set screw149.

Secured on the lower ends of each of the hanger bars and 46 is a tubularextension 150, the lower' end of which extension terminates in atransverse eye portion 151 in which the sleeves 148 carried on thetrunnions 135 of the core supporting basket are nonrotatably mounted.Formed intermediately of each tubular extension 150 are hollow laterallyextending arms 152 which form a journal bearing for a shaft 153. Thetubular extension 150 is provided intermediate its ends with alongitudinal slot 154, through which projects a finger 155 fixed on theshaft 153 and extending laterally therefrom. Mounted on each end of theshaft 153 in a fixed manner are brackets 156, which support arectangular frame 157. Extending transversely of this frame 157 is aplurality of parallel spaced wires 158, the frame 157 and wires 158serving as a lid to cover the core receiving basket when the shaft 153is rotated in one direction. Encircling the shaft 153 at each end is aspring 159, which has one end secured to the adjacent hollow arm 152 andthe other end secured to the bracket 156. These springs 159 are soarranged that they constantly tend to rotate the shaft 153 so as to movethe frame 157 and the wires carried thereby upwardly to uncover the corereceiving basket. Mounted on the inner face of each of the uprights 13and 14 just beneath the grooves 15 and 16 are plates 160, each of whichis provided on between the ribs 161 and 162 `and engages the inner faceof the plate 160 which will cause the shaft 153 to be rotated so as tomove the frames 157 downwardly to a substantially horizontal positionacross the top of the core receiving basket. When in this position, theframes 157 and the wires 158 carried thereby form a lid or cover whichwill prevent the cores disposed upon the basket from being buoyed up bythe liquid and displaced from the basket. It will be apparent, however',that as soon as the core supporting basket is elevated to such a heightas will move the linger 155 out of engagement with the plate 160, theshaft 153 will be rotated so as to move the frames 157 upwardly and thusuncover the core receiving basket.

In order to empty the core receiving basket, it is only necessary toplace a tray or placque therebeneath and operate the uniting members 129and 130 away from the longitudinal axis of the basket A, when the coreswill be free to discharge through the bottom of the basket upon the trayor placque.

It will be further noted that the wheels 92 and 96 are provided with anenlarged tooth which is instrumental in effecting the vibration of thecore receiving basket at the limit of its upward movement by engagementwith the resilient tongues 36 and 44.

What is claimed is 1. In a machine of the class described, thecombination of a base, a tank supported upon the base, a confection coresupporting basket mounted above the tank for movement into and out ofthe latter', a rotatable shaft, connections between the rotatable shaftand the basket, whereby the rotation of the shaft will move said basketinto and out of the tank, and means operated when the basket has reachedthe limit of its movement out of the tank for disconnecting the basketfrom said shaft.

2. In a machine of the class described, the combination of a base, atank supported upon the base, a confection core supporting basketmounted above the tank for movement into and out of the latter, arotatable shaft, connectionsbetween the shaft and basket whereby therotation of the former will move said basket into and out of. the tank,a clutch included in said connections, and means operated when thebasket has reached the limit of its movement out of the tank to actuatesaid clutch and disconnect the basket from the shaft.

3. In a machine of the class described, the combination of a base, atank supported upon the base, a guide frame supported upon t-he tank, arotatable shaft mounted in said guide frame, a confection coresupporting basket also mounted in said guide frame and adapted forreeiprocation into and out of the tank, connections between the shaftand tank wherebynthe-rotation.of the formel1-will reciprocate thelatter, a drive shaft supported by said guide frame, connections be"tween the drive shaft and the first named shaft for rotating the latter,a clutch included in said connections, a collar mounted for rotationwith and longitudinal movement on the rst named shaft, a spring normallyholding said collar against longitudinal movement, means for moving saidcollar longitudinally of the first named shaft during each rotation ofthe latter, and means operated by the rotation of said collar when thelatter has been shifted to the limit of its longitudinal movement forthrowing out said clutch and disconnecting the first named shaft fromthe drive shaft.

4. In a machine of the class described, the combination of a base, atank supported upon the base, a guide frame supported upon the tank, acarrier bar mounted in said guide frame for reciprocation toward andaway from the tank, means for moving said carrier bar, a confection coresupporting basket hung from said carrier bar and adapted for a limitedswinging movement transversely of the guide frame, and automatic meansfor imparting such swinging movement to the basket during the finalmovements of the carrier bar away from the tank.

5. A confection core immersing basket, comprising a frame, a pluralityof rods slidably mounted in said frame for longitudinal movementtransversely of the frame, a uniting member connecting the ends ofcertain t of said rods, a second uniting member connecting the ends ofthe remainder of said rods, connections between said uniting mem berswhereby the movement of one of said members in one direction willproduce af movement of the other member in the oppo-l Vsitedirection,and a plurality of supporting bars secured to and extending transverselyof the rods secured to each uniting member.

6. A confection core immersing basket, comprising a frame, a pluralityof pairs of parallel spaced core supporting rods mounted in said frame,the rods of each pair being adapted for movement toward and away fromeach other to supporting and release positions respectively, means formoving said rods and stops for engaging and holding the confection coresdisposed upon each pair of rods against movement under t-he infiuence ofthe movement of the rods of each pair away from each other.

l. A confection core .immersing basket, comprising a frame, a pluralityof pairs of parallel spaced rods mounted in said frame, the rods of eachpair being adapted for movement toward and away from each other, meansfor moving said rod, a wire mesh supported by said frame above said rodthe members of which are positioned to be disposed on opposite sides ofa confection core when the latter is supported by the rod whereby saidcores are held against movement under the influence of the movement ofthe rods of each pair away from each other.

In testimony whereof, we affix our signatures, in presence of twowitnesses.

CONSTANTINO BERTOLOTTI. DIONISIO PCCARDO.

Vitnesses Louis Rorro, ANTHONY STIFFA.

Copies of this patent may be obtained for ive cents each, by addressingthe Commissioner Vof Patents, Washington, D. C.

